Marmitek LW12 User Manual download pdf (Page 4)

Addresses

Up to a maximum of 256 different addresses can be preset. These are subdivided into a

so-called HouseCode (A to P incl.) and a UnitCode (1 to 16 incl.). The HouseCode can also be

set on the controllers, so that the controllers and modules become part of the same system. The

address can be set either using code dials or by pressing buttons, depending on the type of

module.

The Marmitek X-10 System uses standard commands, which control all units with the same

HouseCode at the same time (e.g. all lights on, all off, etc.).

Signal Range

Range of Marmitek X-10 signals over the Power Line and how to increase the range.

The Marmitek X-10 System is based on power line communication. The range of the

Marmitek X-10 signals very much depends on the local circumstances. On average the range

is a cable length of 80 meters.

If you have difficulties with the range of your Marmitek X-10 signals, please pay

attention to the following facts:

1. When more than one phase is used for your electrical system, it is necessary to

couple these phases for the Marmitek X-10 signals. For coupling you can use FD10 Phase

Couplers/Filters. You only need to install a Phase Coupler/Filter when your wall outlets and

light switches are divided over more than one phase (more than one group is no

problem). For bigger buildings or longer distances we advice you to use an active repeater

instead of passive FD10’s.

2. It is possible that Marmitek X-10 signals are attenuated by devices and lights which are

connected to the power line. In a normal home situation this effect is negligible (the

Marmitek X-10 system is using active gain control to eliminate the effects). However, it is

possible that a particular device in your house is attenuating the signals so much that the

range of Marmitek X-10 signals is decreased significantly. When you have range problems, it

is wise to try to locate the device which is attenuating the signals simply by unplugging

devices from the power line, and testing the differences in range for your Marmitek system.

When e.g. your conclusion is that e.g. your computer monitor is attenuating the signal, you

can use a FM10 Plug-in Filter between the power line and the monitor to eliminate the

effects.

Known devices which can cause attenuation are:

PC Monitors

PCs with heavy internal power supplies

Old Televisions

Copiers

Fluorescent Lights

Gas Discharge Lamps (Energy Saving Lamps)

3. Some (old) devices are able to disturb the signal by transmitting noise on the power line.

Because the Marmitek X-10 signals are transmitted on 120 kHz, only noise on or near this

frequency will have influence on the range. When you use a FM10 Filter to connect this

device to the power line, the noise will be filtered.

4. The Marmitek X-10 protocol has several mechanism to avoid modules to be switched on or

off by other sources than your Marmitek X-10 Controllers. However, it is possible that the

Marmitek X-10 signals are disturbed by e.g. baby phones which are in TALK mode

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Marmitek LW12 User Manual Page 4

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